Re: OT: GS Archives Search

Well, RDs are part of the "new" route destination (VPNv4).
RTs are attributes of the route update. RTs change the way you advertize
the destination network, but RDs *are part of the identity*
of the destination network.

The process of finding the best route to a network needs to be able to
identify where you want to get to. RTs do not serve that pourpose.
They just mark which alternatives you are allowed to consider.

Oh well, it is hard to grasp, it seems; but a piece of advise: don't
give up in trying to understand this! This is not a case of just a
design choice. You can not do this with just RTs (because iBGP would
merge the information of different networks).

-Carlos

Olayemi Salau @ 27/03/2012 09:40 -0300 dixit:
> Marc...thanks, this is the search page I was looking for.
>
> I wanted to search the archives to see if someone has asked why MP-BGP couldn't stick with RTs to "distinguish" customer routes, by extending normal 4 octect addresses with RT and not RDs, this will still achieve a 96 bit addr that can be used for MPBGP. I understand why RD cant do the job of RTs(flexibilty, complexities and load sharing traffic MPLS VPN traffic etc.), but I don't get why RTs can't do the job of RDs. I think the simple answer to this lies in the design/conceptual decisions. Perhaps RD was designed before RTs came into being. Nothing in the RFC 4364 to say this as I read.
>
> Like everyone said, we all know what they are n do. There are some design decisions fundamentals that cant be questioned I suppose, or maybe they can....like why Area 0 (not Area 1) for OSPF BB and Level2 (not Level0) "contiguousness" for ISIS, why does higher priorities in OSPF and lower BID in SPT win elections .....etc
>
> I thank everyone for their explanations of RT/RD. Very much appreciated.
>
> Yemi
>
> On Mar 27, 2012, at 6:19, marc edwards<renorider_at_gmail.com> wrote:
>
>> Answer to your original question:
>>
>> http://groupstudy.com/cgi-bin/search
>>
>> Now a great new thread in the archives from our experts as well :)
>>
>> HTH
>>
>> Marc
>>
>> On Mon, Mar 26, 2012 at 10:18 AM, Yemi Salau<salauolayemi_at_yahoo.co.uk>wrote:
>>
>>> Guys,
>>>
>>> I remember a time where I was able to search the GS archives for stuffs.
>>> Is this still available today? I want to search out some stuffs on RD vs RT.
>>>
>>> Yemi
>>>
>>>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
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